In addition to his own singing activity as a singer in the Kammerchor Stuttgart, Gerhard Möller gained professional experience with the Stuttgarter Hymnus-Chorknaben (choir assistant and voice training) and as a long-standing choir-master of the Evangelischer Kirchenchor at the Pauluskirche Fellbach and in Schwieberdingen He is currently a music teacher and director of the Kammerchor and ELFEN-Chor at the Helene-Lange-Gymnasium in Markgröningen; since the beginning of 2005 he is also director of Fellbacher Vocalensemble.